Spraying appliance



July 23, 1940. H. EICKEN SPRAYING APPLIANCE 2 Sheets-Sheet l Filed July 21,

July 23, 1940. H. EICKEN SPRAYING APPLIANCE Filed July 21, 1938 2 Sheets-Sheet 2 Patented July 23, 1940 gYlUNlTED STATES PATENT OFFICE,

Application July 21, 1938, Serial No. 220,595 In Germany February 2, 1938 3 Claims.

'gThe invention relates to spraying appliances of the kind comprising a bulb which can stand by itself, and a container directly carried thereby, into which the blast and suction pipes of the container are built and which includes the storage space for the liquid. The invention is more especially intended for application to spraying appliances for usein the treatment of the hair.

In such spraying appliances difficulties arise from the usual connection of the glass body by wedging it into the neck of the bulb because the rubber neck is more or less strongly subjected at the junction to the deleterious effect of the solvent of the liquids which are to be sprayed, for example brilliantine, fixative or hair lacquer. It often occurs, especially when the liquid chamber is refilled, that some of the liquid runs down the outside of .the glass and reaches the joint between glass and rubber and causes, swelling or similar damage to the rubber.

In order to avoid this disadvantage, the mouth of the neck of the rubber bulb is fitted, in accordance with the invention, with a metal sleeve which is tightly held therein and is provided with impressed threads which fit threads provided-on the connecting portion of. the glass container. The connection between the bulb and the glass body is thus greatly improved and damage of the outer surface of the neck by liquid running down the glass body and penetrating into the joint is avoided. Moreover, the glass body can beeasily removed for the purpose of cleaning the nozzles of the spray tubes. It is preferred not to secure the spray pipes in the threaded connecting portion of the glass body by fusion, as is usual, but to secure them by means of a stopper of plastic-elastic material, such as cork, rubber or the like, which carries the tubes, which may be easily removed for the purpose ofcleaning their blast and suction openings. In order to ensure that the stopper fits tightly within the lower opening of the liquidcontainer when the latter is screwed into the metal sleeve, the sleeve is provided with a bottom portion against which the stopper is pressed.

In order to ensure that, after the stopper has come into contact with the bottom of the threaded sleeve,- inequalities in the material or other unavoidable irregularities do not result in a displacement of the spray tubes carried by the stopper from their correct axial adjustment, so that the'stream of liquid spray impinges to a greater or lesser extent upon the walls of the outlet opening with resultant reduction in the spray effect and perhaps precipitation of coarse drops and waste of liquid, the stopper which carries the spray tubes is, in accordance with a further feature of the invention, provided with a coaxially projecting bearing surface, which, upon insertion into the opening of the neck of the container, bears coaxially upon its edge and thus ensures the correct axial position of the spray tubes even if the stopper is compressed when the container is screwed inowing to abutment against the bottom wall of the threaded metal sleeve.

The invention is illustrated by the specific forms of spraying appliance which will now be described, by way of example, with reference to the accompanying drawings, in whichz' Figure 1 shows, in side elevation, .a spraying appliance in accordance with the invention in the closed condition.

Figure '2 represents a vertical section on the line II-l'I of Figure 1.

Figure 3 represents, to an enlarged scale, a. longitudinal section through the two spray tubes, which are connected together, and

Figure 4 represents a sectional view thereof.

Figure 5 shows another form of the device in side elevation, and

Figure 6 represents a vertical sectional view thereof.

Figure '7 represents a section on the line V IIVII of Figure 6.

Figure 8 represents a perspective view of the stopper for closing the bottom of the liquid chamber, and I Figure 9 illustrates a modified'form in a partial sectional view equivalent to that of Figure 6.

The bulb is provided beneath with the standing surface 2 and above with a thickened connecting neck 3. A comparatively thin-walled metal sleeve 4 is tightly gripped in the mouth of the neck 3, and is provided near its upper edge with an impressed thread 5, which serves for the connection with the body of the spray chamber 6, the lower part of which forms the storage space 1 for the liquid. For the purpose of connecting the spray chamber B'to the bulb, the latter is provided at its lower end with a reduced connecting portion 8, resembling a bottle-neck, which is provided near its upper edge with an external thread 9 which fits the thread 5 of the metal sleeve 4, so that it can be screwed into the sleeve. The closure of the mouth of the connecting portion 8 is effected by a stopper In, which is preferably made from synthetic rubber or cork or some other elastic material which is resistant to the liquid to be used. The stopper I0 is provided with a longitudinal bore ll, into which the blast pipe [2, which is preferably of metal, is inserted from above. The blast hole I3 of this pipe is in the side wall thereof and is in the form of a simple hole; the suction pipe I4, also of metal, is conveniently arranged alongside and soldered to the blast pipe so that its reduced end 15 opens ata slight distance in front of the blast opening l3.

The metal sleeve 4 has a bottom l6, which is 2 p I 'provided'w ith a central aperture. The length of the stopper H1 is convenientlysuch that it seats tightly against this bottom, when the con- I necting'p'ortio'n is screwed in", the seating of the upper endofthe stopper in the mouth of the con-v necting portion 8 being at the same time ensured.

For the purpose of a good connection of the metal sleeve 4 with the neck 3, the upper edge of the sleeve is flanged outwardly and ba'ckwardlv in such a manner that it fitstightly against the outer surface of the neck 3. This arrangement,

also ensures, that, in the event of overflow, which can easily occur when'the liquid container is filled, liquid flowing down the outer wall cannot reach the outer surface of the rubber neck itselfliat the junction with the glassbody, so that its' durability isnot influenced by swelling or The step" forms a fiat surface which projects solutionof the rubber.

' In thearrangementillustratedby Figs. 1 and 2, the spray openings conveniently lie at the" height of the edge" of'the mouth of the atomizer chamber. In the form according to Figs. 5 and 1 6,"h-owever, the atomizer chamber has a lateral spray neck ['91 'Acc'ordingto 'a further feature of the invention'the outer surface of the stopper IEI; can be provided in. the middle as shown inFig. -6,-with a step 20", which seats upon the edge of the externally threaded'connecting portion 8 of the glass container when the. parts are assembled together.

at right angles to theaxis of the longitudinal hole" I I of the stopper and thus ensures the cor- 3'5 1 the, container.

rect axial "adjustment of the blast pipe within The correct axial position of the 1 spray stream in'the height-planeof the spray 5 opening is thus ensured. The correct lateralfa'd' justment of the spray stream can be ensured of the stopper Ill isinserted. v V I The diameter of the'npper reduced portion 20;

easily enough when the upper reduced- 1 of the stopper is, for the latter purpose, preferstops, that thesp'raying device is'fixed' in the 1 correct angular position. It is possible, as shown for=exainple in Figure 9, toomit the reduced portionof the stopper altogether so that the 1 sealing fs u'rface 20 formsthe outer edge of a flat- 'j upper boundary for the stopper which carries 1 the blast pipes.

The glass container can be provided at a suitable'height with an annular depression 22 in l whicha rubber ,ring 23 "suitable for damping shocks" can be mounted. This ring preferably serves for securing the chain 2'4 for the screw cap" 25-, by means of which the glass container canbe closed when not inuse; The glass body of the container need 'notbe made from easily breakabl'egl'ass t'ubmg and can be cheaplymade,

'3 as-isusualwith glass bottles, from comparatively sho'ckproof pressed glass, so that, even if the hollow glass' "body sometimes gets broken, it can easil-ybe' replaced at small expense and .with

little waste ofltimea'nd'energy. It isshovvnv that thefsleeve' has an extension at the top forming a flange 25fwhichoverlies the'upper edge of the neck of'the bulb and protects the material of the bulb from deposits which mayvhave an injurious efiect on the saidfmatrial,

portion}? l' I the aperture of the stopper extending in I container and having a blast op'ening i As can be seen from Figure 3, the blast pipe I I2 is conveniently closed at the upper end by means of a removable screw-stopper 21, so that the pipe can v be opened'vand cleaned out if it should become blocked by lacquer. deposits.

' Instead of glass, artificial resin, porcelain or.

'iifinetal can be used as the material from which the atomizing chamber 6 is made.

I' claim:' I 1 .""A"Sp13,yingappliance having a collapsible bulb having an open neck, a comparatively thinwall sleevedepending into the neck of the bulb, ,7

the said'sleeve having a bottom'with an aperture therein, the said sleeve being threaded at the upper'end of the neck, a container for fluid having a cylindrical bottom threaded into' the' said sleeve; a stopper resting onthe bottom; ofthef sleeve and having an aperture-- alining with the aperture of the bottom-of the sleeve and the said stopper fitting within the eminence-rememsion'ofthe container, the said-extension serving to retain the bottom of the stopper ineng'age-- ment with thebottom of thesleeve, a blastpipe in the aperture of the stopper extending into the container, a suction pipe-associated "and'fco-' operating with the blastpipe, and the said cjon tainer having a side opening-above the liquid level in alinementwith a blast hole Iof 'theblast I v r A K I 1 2. In a sprayingappliance', a collapsibl bulb having a supporting base where'byth s dbulb maystand vertically, and ano'p'en ne" metal sleeve depending into the neck 'of the bulb and having an apertured bottom; th'e said sleeve'be'ing secured in the neckof the bulb and having a flange overlying the; neckof the 1bulb,1jan apert 'ured' stopper in the sleeve; the a perture of which registers with the apertureoffthesleeveia f container having a cylindrical extension h as in the sleeve and secured thereto" and l iii-Wh ch the'stopperis lodged, a blast pipe' in theapertur of the stopper extendi-ng*upwardly' in theceritainfer' and having a blast -opening the sa tainer having a side" opening .a'l ini I said blast opening, and a suction pipe extending with the into that portion; of the container'containjng I the fluid and having'an' orifice alinement with the b last opening. 1 I II 3. A spraying, appliancehaving a collapsible I bulb with an open neck, a] comparativ'elyth walled sleeve depending"in-to the neck" 0 bulb, the said sleeve having-a'I-bottom wit an aperture therein, means by which thie'sle'eveis anchored in the neck, a con-taineri'or fluid haV- ing a cylindrical bottom anchored in saicf sle'eve,

and having an aperture alining withtheaper retain the bottom of the stopper 'in*-engagerrient with the bottom of the sleeve; blastpipeifi the ment with an op'eningin the side ofthefiui con tainer near the top thereof, an s suction extending into that portion offth'e container having thefluid and havingan {orifice ali'ning with the blast opening. I r 1' I a stopper resting on the bottom ofthe sleeve 

